Quadratic regression ti 84 calculator online12/28/2022 12 task cards to help students find equations of graphs using linear, quadratic, or exponential regression with the TI graphing calculator.Play a relay race game with your Algebra or 8th grade class while practicing their graphing calculator regression skills! Students will write equations using the TI 83/84 calculator based on the points (ordered pairs) of the graph. When did the rocket reach its maximum height?Īlthough the rocket was in fact launched from ground level at time0, the graph seems to indicate that the rocket was launched at abouttime -1 seconds.Linear, Quadratic, Exponential Regression on the TI 83/84 Calculator Free Press the TRACEkey and use the arrow keys to predict when the rocket will be atvarious heights (you may need to use the up arrow key to trace theparabola). The graph will show the individualdata points as well as the best fit parabola. You can letthe calculator choose these values for you by pressing the ZOOM key and choosing option number 9: ZOOMSTAT.Ħ. When you do a stat plot, you need to look atyour data and choose values that will include your data. These numbers will tell the graphing calculator what part of thegraph it should display. Press the WINDOW key and enter the following: Press the StatPlot key ( 2nd and Y=).Choose Plot1 and press ENTER. The variables a, b, and c are the coefficients for the quadraticequation that best fits the data you entered.Ĥ. You will see something like: y = ax 2 +bx + c Your homescreen should show: QuadReg L1, L2, Y1 Type "L1, L2" by pressing 2nd and 1, then comma, then 2nd and 2.Type "Y1" by pressing VARS, moving across to Y-VARS,choosing Function, and choosing option number 1. This will bring you back to the homescreen, with QuadReg showing. Press the STAT key, select CALC, and chooseoption number 5: QuadReg. The numbers under the L2 heading are the heightof the rocket in feet.ģ. The numbers under the L1 heading are the seconds since therocket was launched. These data points represent the height of a model rocket atvarious times during its flight after its rocket motor has burnedout. Press the STAT key, use the arrow keys to select EDIT, and enter this data: L1 Press the Y= key and clear any equations.Ģ. Quadratic Regression Quadratic Regression on the TI-83ġ.
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